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"E" submarines (E9 group) (E9) (48, 1914 - 1917)


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E11 1915

Ships


Name No Yard No Builder Laid down Launched Comp Fate
E9 I89   Vickers, Barrow 6.1912 29.11.1913 6.1914 scuttled 8.4.1918
E10 I90   Vickers, Barrow 7.1912 29.11.1913 8.1914 sunk 18.1.1915
E11 I91   Vickers, Barrow 7.1912 23.4.1914 9.1914 sold 3.1921
E12 I92   Chatham DYd 12.1912 5.9.1914 10.1914 sold 3.1921
E13 I93   Chatham DYd 12.1912 22.9.1914 12.1914 sold 12.1921
E14 I94   Vickers, Barrow 12.1912 7.7.1914 12.1914 sunk 27.1.1918
E15 I95   Vickers, Barrow 10.1912 23.4.1914 10.1914 sunk 15.4.1915
E16 I96   Vickers, Barrow 10.1912 23.9.1914 2.1915 sunk 22.8.1916
E17 I97   Vickers, Barrow 7.1913 16.1.1915 4.1915 wrecked 6.1.1916
E18 I98   Vickers, Barrow 1.1914 4.3.1915 6.1915 sunk 24.5.1916
E19 I99   Vickers, Barrow 11.1914 13.5.1915 7.1915 scuttled 8.4.1918
E20 I69   Vickers, Barrow 11.1914 12.6.1916 8.1915 sunk 5.11.1915
E21 I70   Vickers, Barrow 11.1914 24.7.1915 10.1915 sold 12.1921
E22 I79   Vickers, Barrow 11.1914 27.8.1915 11.1915 sunk 25.4.1916
E23     Vickers, Barrow 12/1914 28.9.1915 12/1915 sold 9.1922
E24     Vickers, Barrow 1.1915 9.12.1915 1.1916 sunk 24.3.1916
E25     Beardmore, Dalmuir 11.1914 23.8.1915 10.1915 sold 12.1921
E26     Beardmore, Dalmuir 11.1914 11.11.1915 10.1915 sunk 6.7.1916
E27     Yarrow, Scotstoun 1915 9.6.1917 8/1917 sold 9.1922
E28     Yarrow, Scotstoun 1915 --- --- cancelled 4.1915
E29     Armstrong, Elswick 12/1914 1.6.1915 10/1915 sold 2.1922
E30     Armstrong, Elswick 12.1914 29.6.1915 11.1915 sunk 22.11.1916
E31     Scotts, Greenock 12/1914 23.8.1915 12/1915 sold 9.1922
E32     White, Cowes 12/1914 16.8.1916 10/1916 sold 9.1922
E33     Thornycroft, Woolston 1/1915 18.4.1916 11/1916 sold 9.1922
E34     Thornycroft, Woolston 1.1915 27.1.1917 3.1917 sunk 20.7.1918
E35     John Brown, Clydebank 12/1914 20.5.1916 7/1916 sold 9.1922
E36     John Brown, Clydebank 1.1915 16.9.1916 11.1916 sunk 17.1.1917
E37     Fairfield, Govan 12.1914 2.9.1915 3.1916 sunk 1.12.1916
E38     Fairfield, Govan 12/1914 13.6.1916 7/1916 sold 9.1922
E39     Palmers, Jarrow 12.1914 18.5.1916 10.1916 sold 10.1921
E40     Palmers, Jarrow 12.1914 9.11.1916 5.1917 sold 12.1921
E41     Cammell Laird, Birkenhead 12/1914 22.10.1915 6/1916 sold 9.1922
E42     Cammell Laird, Birkenhead 12/1914 22.10.1915 6/1916 sold 9.1922
E43     Swan Hunter, Wallsend 12.1914 11.11.1915 2.1916 sold 1.1921
E44     Swan Hunter, Wallsend 1.1915 21.2.1916 7.1917 sold 10.1921
E45     Cammell Laird, Birkenhead 1/1915 25.1.1916 8/1916 sold 9.1922
E46     Cammell Laird, Birkenhead 1/1915 4.4.1916 10/1916 sold 9.1922
E47     Fairfield, Govan 1.1915 29.5.1916 10.1916 sunk 20.8.1917
E48     Fairfield, Govan / Beardmore, Dalmuir 2.1915 2.8.1916 2.1917 sold 7.1928
E49     Swan Hunter, Wallsend 2.1915 18.9.1916 12.1916 sunk 12.3.1917
E50     John Brown, Clydebank 3.1915 13.11.1916 1.1917 sunk 1.2.1918
E51     Scotts, Greenock 3/1915 30.11.1916 1/1917 sold 10.1931
E52     Denny, Dumbarton 3.1915 25.1.1917 3.1917 sold 1.1921
E53     Beardmore, Dalmuir 2/1915 1916 3/1916 sold 9.1922
E54     Beardmore, Dalmuir 2.1915 1916 5.1916 sold 12.1921
E55     Denny, Dumbarton 12/1914 5.2.1916 3/1916 sold 9.1922
E56     Denny, Dumbarton 12/1914 19.6.1916 8/1916 sold 6.1923


Technical data


Displacement standard, t 
Displacement normal, t

667 / 807

Length, m

E9 - 18: 55.2

E19 - 56: 55.6

Breadth, m

4.61

Draught, m

3.81

No of shafts

2

Machinery

2 8-cyl Vickers diesels / 2 electric motors

Power, h. p.

1600 / 840

Max speed, kts

15 / 9

Fuel, t

diesel oil 38

Endurance, nm(kts)3000(10) /
Armament

E9 - 19: 5 - 450 TT (2 bow, 2 beam, 1 stern, 10)

E20: 1 x 1 - 152/14 30cwt siege howitzer, 5 - 450 TT (2 bow, 2 beam, 1 stern, 10)

E21 - 23, 25 - 27, 29 - 33, 35 - 40, 42 - 44, 47 - 50, 52 - 56: 1 x 1 - 76/28 12pdr 8cwt QF Mk I, 5 - 450 TT (2 bow, 2 beam, 1 stern, 10)

E24, 34, 41, 45, 46, 51: 1 x 1 - 76/28 12pdr 8cwt QF Mk I, 3 - 450 TT (2 bow, 1 stern, 6), 20 mines

Complement

31

Diving depth operational, m30


Standard scale images


<i>E34</i> 1916
E34 1916


Graphics


<i>E11</i> 1915
E11 1915


Project history

Five more 'E' class were proposed for the 1911-12 Programme, but with numerous improvements suggested by experience with the 'D's and early 'E's. However in August 1914, to speed production the Admiralty proposed that E7 and E8 should be completed to the basic design, and that only the essential improvements should be incorporated into E9. As mass-production was planned Chatham Dockyard's E12 was to be the pattern for all builders except Vickers. The E9 design was made 0.9m longer to permit a second 450mm TT in the bow. Although the 'D' class had their tubes 'over-and-under' to allow a finer bow-form, the 'Improved E' design reverted to a side-by-side configuration as this afforded more protection to the bow caps and shutters, and made for easier loading. The foremost watertight bulkhead was also moved 0.6m aft to simplify loading. The engines were moved forward, the conning tower was enlarged to provide a steering position, and a third watertight bulkhead was provided. E9-11 and E14-16 were immediately approved to be built to this design but Chatham DYd produced a design which was a compromise between the original E1 class and the modified Vickers design. A single bow tube was the most important change, but as E12 became the pattern for wartime production at some stage the twin tubes must have been reinstated, for records show clearly that war-built 'E's had two TT forward.

When war broke out the contracts for E17 and E18 were authorised and had gone to Vickers, but Fisher was anxious to build many more submarines. On 11 November 1914 a conference between the Admiralty and representatives of the shipbuilders met to allocate future construction. Out of this came contracts for E19-56: 6 from Vickers, 4 from Beardmore, 2 from Scott, 2 from Yarrow, 2 from Armstrong, 1 from White, 2 from Thornycroft, 3 from John Brown, 4 from Fairfield, 2 from Palmer, 4 from Cammell Laird, 1 from White, 2 from Scott and 3 from Denny. This total included two 'E' class already ordered for Turkey from Beardmore; they were re-allocated as E25 and E26. E27 and E28 were cancelled in April 1915 to allow Yarrow to carry on with more important work, but E27 was reinstated in August. From E19 all were given a 'plough' bow to improve seakeeping, and a variety of guns were fitted, as supplies allowed. Experience in the Sea of Marmora showed the need for guns, and various weapons were hurriedly installed, such as E20's 152mm howitzer (fitted by the builders), E11 's and E12's 102mm (supplied by Malta DYd). Some of the North Sea boats received high-angle 76mm or 12pdrs in 1916-17. Early in 1916 E22 was fitted with a launching ramp on her after superstructure to fly off two Sopwith Baby seaplanes; the idea was to launch them well inside the Heligoland Bight on a reconnaissance mission. In the Sea of Marmora several boats carried spare torpedoes lashed to the casing. The upper rudder was removed from all during the war.

Modernizations

1915, E11, E12, E14: + 1 x 1 - 102/40 BL Mk VIII

1915, E21, E25: - 1 x 1 - 76/28; + 1 x 1 - 102/40 BL Mk VIII

1916, E46: - 1 x 1 - 76/28; + 1 x 1 - 76/50 12pdr 18cwt QF Mk I

early 1916, E22: + flying-off ramp for Sopwith Baby recon plane, 2 Baby seaplanes.

1917, E48: - 1 x 1 - 76/28; + 1 x 1 - 102/50 QF Mk IX

1917 - 1918, 18 submarines served in the Northern sea: + 1 x 1 - 40/37 2pdr QF Mk III

Naval service

Е14 (27.1.1918 off Kum Kale, Dardanelles), Е16 (22.8.1916 in the North Sea), Е24 (24.3.1916 in the North Sea), Е34 (20.7.1918 in the North Sea), Е49 (12.3.1917 off Shetlands) and Е50 (1.2.1918 in the North Sea) were mined. E15 ran aground 15.4.1915 at Kephez Point, Dardanelles and was destroyed by Turkish coastal artillery, Е18 (by decoy vessel K off Bornholm), Е20 (by submarine UB14 in Sea of Marmora)and Е22 (by submarine UB18 in the North Sea) were sunk by German ships 24.5.1916, 5.11.1915 and 25.4.1916 respectively. 6 submarines were lost for unknown reasons: Е10 (18.1.1915, North Sea), E26 (6.7.1916, North Sea), Е30 (22.11.1916, North Sea), Е36 (17.1.1917, North Sea), Е37 (1.12.1916, North Sea) and Е47 (20.8.1917, North Sea). Е41 was rammed by E4 and both sunk 15.8.1916 but both were salvaged and repaired later. Е17 wrecked 6.1.1916 off the Texel. Е13 ran ashore on Danish coast 18.8.1915 and was interned till November 1918. Е9 and Е19 are scuttled 8.4.1918 at Helsingfors in order to avoid capture by Germans.